Model comparison
GLM-5.2 vs Grok 4.5
Compare GLM-5.2 vs Grok 4.5 API pricing: input/output token costs, cache pricing, context windows, workload estimates, and routing fit.
GLM-5.2
zai · glm-5.2
- Input
- $1.4
- Output
- $4.4
- Context
- 1M
Grok 4.5
xai · grok-4.5
- Input
- $2
- Output
- $6
- Context
- 500K
Quick take
GLM-5.2 has the lower input price at $1.4 per 1M input tokens. GLM-5.2 is cheaper for the example blended workload below. GLM-5.2 has the larger context window at 1M tokens.
Choose GLM-5.2 if...
- GLM-5.2 is the better default for cost-sensitive traffic and repeated high-volume calls.
- GLM-5.2 is safer for long documents, repository analysis, and RAG prompts because it has the larger context window.
- GLM-5.2 gives more room for long generated answers, reports, or code output.
Choose Grok 4.5 if...
- Grok 4.5 is required if images, screenshots, or visual documents are part of the workflow.
Example workload cost
Estimates use input tokens plus 20% output tokens. They exclude provider discounts, cache hits, and tool/search surcharges.
| Workload | GLM-5.2 | Grok 4.5 | Cheaper |
|---|---|---|---|
| 1M input + 200K output | $2.28 | $3.20 | GLM-5.2 |
| 10M input + 2M output | $22.80 | $32.00 | GLM-5.2 |
| 100M input + 20M output | $228.00 | $320.00 | GLM-5.2 |
Context, output, and capability fit
GLM-5.2 provides the larger context window. Check max output separately when the task needs long reports, code generation, or full-document rewrites.
- GLM-5.2 max output
- 128K
- Grok 4.5 max output
- n/a
- GLM-5.2 features
- prompt caching, function calling
- Grok 4.5 features
- prompt caching, function calling, vision
Risk notes for GLM-5.2
- No major capability risk is flagged in this snapshot, but provider pages should still be verified before production routing.
Risk notes for Grok 4.5
- No major capability risk is flagged in this snapshot, but provider pages should still be verified before production routing.
Routing tags
frontierreasoningcodingagentslong-contextopen-weightcache-friendlyraglocal-openmultimodal